Difference between revisions of "JEF meeting, August 18, 2023"
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**: - Received 70 crystals from SICCAS. 66 have been pre-selected by Jane's group | **: - Received 70 crystals from SICCAS. 66 have been pre-selected by Jane's group | ||
**: - sent additional 4 (supposed to be from the previous batch). Quality of those crystals is very poor [https://halldweb.jlab.org/detectors/fcal2/crystals/delivered/SICCAS/bad_crystals.jpg][https://halldweb.jlab.org/detectors/fcal2/crystals/delivered/SICCAS/bad_crystals1.jpg] | **: - sent additional 4 (supposed to be from the previous batch). Quality of those crystals is very poor [https://halldweb.jlab.org/detectors/fcal2/crystals/delivered/SICCAS/bad_crystals.jpg][https://halldweb.jlab.org/detectors/fcal2/crystals/delivered/SICCAS/bad_crystals1.jpg] | ||
− | ** Received | + | ** Received 960 short signal cables [https://halldweb.jlab.org/detectors/fcal2/installation/photos/label_signal/short_signal.jpg] |
** Procurement parts for the LMS: | ** Procurement parts for the LMS: | ||
**: - Waiting for 7,600 ft of optical fibers (August/September) | **: - Waiting for 7,600 ft of optical fibers (August/September) | ||
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** Visual inspections of fabricated modules [https://halldweb.jlab.org/detectors/fcal2/installation/meetings/19_05_2023/modules_qa.docx] - done | ** Visual inspections of fabricated modules [https://halldweb.jlab.org/detectors/fcal2/installation/meetings/19_05_2023/modules_qa.docx] - done | ||
** Prepare to move modules into Hall D [https://halldweb.jlab.org/detectors/fcal2/installation/photos/move_to_halld/prepare_to_move.jpg] [https://halldweb.jlab.org/detectors/fcal2/installation/photos/move_to_halld/prepare_to_move1.jpg][https://halldweb.jlab.org/detectors/fcal2/installation/photos/move_to_halld/prepare_to_move2.jpg], wrap modules with sort towels. Need to move about 100 modules to the Hall. | ** Prepare to move modules into Hall D [https://halldweb.jlab.org/detectors/fcal2/installation/photos/move_to_halld/prepare_to_move.jpg] [https://halldweb.jlab.org/detectors/fcal2/installation/photos/move_to_halld/prepare_to_move1.jpg][https://halldweb.jlab.org/detectors/fcal2/installation/photos/move_to_halld/prepare_to_move2.jpg], wrap modules with sort towels. Need to move about 100 modules to the Hall. | ||
− | ** Tested, labeled, and bundled all 100 (+ 2 spares) [https://halldweb.jlab.org/detectors/fcal2/installation/photos/label_signal/signal_bundles.jpg] signal cables connected from the flash ADC to the patch panel [https://halldweb.jlab.org/wiki/index.php/Testing_and_labeling_cables] | + | ** Tested, labeled, and bundled all 100 (+ 2 spares) [https://halldweb.jlab.org/detectors/fcal2/installation/photos/label_signal/signal_bundles.jpg] signal cables connected from the flash ADC to the patch panel [https://halldweb.jlab.org/wiki/index.php/Testing_and_labeling_cables] - done |
+ | ** Test and label 960 short signal cables - ongoing | ||
+ | ** Tested fabricated modules using LMS [https://halldweb.jlab.org/wiki/index.php/Testing_ECAL_modules] - done (need to update the wiki page) | ||
** Cutting optical fibers and gluing plastic caps [https://halldweb.jlab.org/detectors/fcal2/installation/meetings/06_23_2023/glue_caps.jpg], waiting for 7600 ft of optical fibers | ** Cutting optical fibers and gluing plastic caps [https://halldweb.jlab.org/detectors/fcal2/installation/meetings/06_23_2023/glue_caps.jpg], waiting for 7600 ft of optical fibers | ||
+ | ** Work on refurbishing LG modules. About 60 modules have to be checked / fixed (rejected during installation) | ||
** [https://docs.google.com/presentation/d/1euIA49SszoQmSM4Lxu1OtZ8OfjltgwzXIbXo6TPEB3s/edit#slide=id.p Report from students] | ** [https://docs.google.com/presentation/d/1euIA49SszoQmSM4Lxu1OtZ8OfjltgwzXIbXo6TPEB3s/edit#slide=id.p Report from students] | ||
− | |||
− | |||
* '''[[Testing of PMT dividers]]''' -- Sasha / Vlad | * '''[[Testing of PMT dividers]]''' -- Sasha / Vlad | ||
** Received 10 dividers (first article) ! , going to test them during this week (Chris) | ** Received 10 dividers (first article) ! , going to test them during this week (Chris) | ||
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** Discussion of the FCAL2 installation procedures [https://halldweb.jlab.org/wiki/index.php/FCAL_2_Installation_Meetings] | ** Discussion of the FCAL2 installation procedures [https://halldweb.jlab.org/wiki/index.php/FCAL_2_Installation_Meetings] | ||
** [https://halldweb.jlab.org/wiki/index.php/Distribution_of_signals_and_voltages Final mapping of low-voltage cables] | ** [https://halldweb.jlab.org/wiki/index.php/Distribution_of_signals_and_voltages Final mapping of low-voltage cables] | ||
+ | ** Mindy continues with wrapping crystals and soldering wires to sockets. | ||
** [https://halldweb.jlab.org/wiki/index.php/List_of_tasks_and_manpower Projects for summer students] | ** [https://halldweb.jlab.org/wiki/index.php/List_of_tasks_and_manpower Projects for summer students] | ||
** [https://halldweb.jlab.org/detectors/fcal2/installation/students_2023/list_of_students_2023.xlsx Summer Students (2023) ] | ** [https://halldweb.jlab.org/detectors/fcal2/installation/students_2023/list_of_students_2023.xlsx Summer Students (2023) ] | ||
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*'''Writeup on FCAL-2 for JLab newsletter | *'''Writeup on FCAL-2 for JLab newsletter | ||
+ | |||
+ | =Minutes= | ||
+ | Attendees: Sasha, Bill, Axel, Jon, Zisis, Olga, Phil, Liping, S.T. | ||
+ | * Received 70 SICCAS crystals | ||
+ | ** 66 pre-selected by Jane's group + 4 from previous batch (these look terrible!) | ||
+ | * 960 short signal cables labelled and tested -- 1 found to be bad | ||
+ | * No update on arrival of remaining LMS fibers | ||
+ | * Visual inspection of fabricated modules done, in process of moving modules to Hall D | ||
+ | * All modules tested using LMS and dark box, found 2 bad PMTs (have been replaced) | ||
+ | * Stacking continues in hall: now 1286 lead glass + 996 lead tungstate modules have been installed | ||
+ | ** Had to replace some modules due to surface imperfections | ||
+ | ** Survey group checked flatness/slope at current stage of construction, no major issues observed | ||
+ | * Sasha communicated with detector support group to provide further support when Arshak leaves | ||
+ | * Mindy from detector support group continues wrapping modules | ||
+ | * Plan to arrange with JLab communications office to highlight FCAL-2/JEF | ||
+ | ** Phil also discussed press release from his institution |
Latest revision as of 15:21, 18 August 2023
Meeting time and location:
- 9:30 am EST (JLab time) remote only
- Connection information
Agenda
- Preparation of parts for ECAL modules -- Sasha
- Crystals:
- Received 960 short signal cables [3]
- Procurement parts for the LMS:
- - Waiting for 7,600 ft of optical fibers (August/September)
- Module fabrication -- Sasha
- All modules have been fabricated, checked, and inventorized (about 1610 modules in total)
- Ongoing projects -- Sasha, all
- Visual inspections of fabricated modules [4] - done
- Prepare to move modules into Hall D [5] [6][7], wrap modules with sort towels. Need to move about 100 modules to the Hall.
- Tested, labeled, and bundled all 100 (+ 2 spares) [8] signal cables connected from the flash ADC to the patch panel [9] - done
- Test and label 960 short signal cables - ongoing
- Tested fabricated modules using LMS [10] - done (need to update the wiki page)
- Cutting optical fibers and gluing plastic caps [11], waiting for 7600 ft of optical fibers
- Work on refurbishing LG modules. About 60 modules have to be checked / fixed (rejected during installation)
- Report from students
- Testing of PMT dividers -- Sasha / Vlad
- Received 10 dividers (first article) ! , going to test them during this week (Chris)
- Proceedures
- Installation of the FCAL2 detector & integration to GlueX -- Sasha / Arshak / Vlad / Hakob
- Detector installation [12][13][14]
- Detector installation page
- Updates from the meetings with Tim's group [15]
- Discussion of the FCAL2 installation procedures [16]
- Final mapping of low-voltage cables
- Mindy continues with wrapping crystals and soldering wires to sockets.
- Projects for summer students
- Summer Students (2023)
- Light monitoring system -- Arshak
- Writeup on FCAL-2 for JLab newsletter
Minutes
Attendees: Sasha, Bill, Axel, Jon, Zisis, Olga, Phil, Liping, S.T.
- Received 70 SICCAS crystals
- 66 pre-selected by Jane's group + 4 from previous batch (these look terrible!)
- 960 short signal cables labelled and tested -- 1 found to be bad
- No update on arrival of remaining LMS fibers
- Visual inspection of fabricated modules done, in process of moving modules to Hall D
- All modules tested using LMS and dark box, found 2 bad PMTs (have been replaced)
- Stacking continues in hall: now 1286 lead glass + 996 lead tungstate modules have been installed
- Had to replace some modules due to surface imperfections
- Survey group checked flatness/slope at current stage of construction, no major issues observed
- Sasha communicated with detector support group to provide further support when Arshak leaves
- Mindy from detector support group continues wrapping modules
- Plan to arrange with JLab communications office to highlight FCAL-2/JEF
- Phil also discussed press release from his institution